Performance AFM DOD Delete Kit w/ Texas Speed Truck Camshaft for Gen IV 5.3L Chevrolet GMC Truck SUVThis kit includes everything needed to delete AFM DOD (Active Fuel Management) from 2006 2009 GM Gen IV 5. 3L engines. This kit will work with 2010 later engines, with the use of an LS2 style front cover (VVT Deletion). We recommend upgrading valve springs with the addition of a performance camshaft. Click Here . 560" lift beehive valve springs pair nicely with these cams. Kit Contents Your Choice of Texas Speed Truck Camshaft Your Choice of Lifters w